Expansions, diversification, and interindividual copy number variations of AID/APOBEC family cytidine deaminase genes in lampreys

Abstract: Cytidine deaminases of the AID/APOBEC family mutate the genetic material of pathogens or contribute to the generation and diversification of antibody repertoires in jawed vertebrates. In the extant jawless vertebrate, the lamprey, two members of the AID/APOBEC family are implicated in the somatic diversification of variable lymphocyte receptor (VLR) repertoires. We discovered an unexpected diversity of cytidine deaminase genes within and among lamprey species. The cytidine deaminases with features comparable to jawed vertebrate AID are always present, suggesting that they are involved in essential processes, such as VLR assembly. In contrast, other genes show a remarkable copy number variation, like the APOBEC3 genes in mammals. This suggests an unexpected similarity in functional deployment of AID/APOBEC cytidine deaminases across all vertebrates

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch
• Notes: Proceedings of the National Academy of Sciences of the United States of America. - 115, 14 (2018) , E3211-E3220, ISSN: 0027-8424

Contributors, Places and Time

• Event: Veröffentlichung
• (where): Freiburg
• (who): Universität
• (when): 2019
• Creator: Holland, Stephen J. ; Berghuis, Lesley M. ; King, Justin J. ; Iyer, Lakshminarayan M. ; Sikora, Katarzyna ; Fifield, Heather ; Peter, Sarah ; Quinlan, Emma M. ; Sugahara, Fumiaki ; Shingate, Prashant ; Trancoso, Inês ; Iwanami, Norimasa ; Temereva, Elena ; Strohmeier, Christine ; Kuratani, Shigeru ; Venkatesh, Byrappa ; Evanno, Guillaume ; Aravind, L. ; Schorpp, Michael ; Larijani, Mani ; Boehm, Thomas
• Contributor: Max-Planck-Institut für Immunbiologie

Further information

• DOI: 10.1073/pnas.1720871115
• URN: urn:nbn:de:bsz:25-freidok-1479650
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 05.11.2025, 8:07 AM CET